Question

The graph shows the weight and fuel efficiency, in miles per gallon, for a selection of vehicles.





Question
Which is the ,begin emphasis,best,end emphasis, estimate of the correlation coefficient of the line of best fit?

Answer options with 4 options
A.
negative 0.91

B.
negative 0.23

C.
0.68

D.
0.89

Answer 1

A. negative 0.91

Reason: the scatter shows a strong, tightly clustered downward trend (as weight increases mpg decreases), so a large negative correlation (about −0.91) is the best estimate.